CN108151566A - Impregnate sandstone heat-storing method and its device - Google Patents
Impregnate sandstone heat-storing method and its device Download PDFInfo
- Publication number
- CN108151566A CN108151566A CN201711339276.2A CN201711339276A CN108151566A CN 108151566 A CN108151566 A CN 108151566A CN 201711339276 A CN201711339276 A CN 201711339276A CN 108151566 A CN108151566 A CN 108151566A
- Authority
- CN
- China
- Prior art keywords
- sandstone
- heat
- closed container
- pipe
- dipping
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 18
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 36
- 238000009825 accumulation Methods 0.000 claims abstract description 33
- 238000007598 dipping method Methods 0.000 claims abstract description 26
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 19
- 150000003839 salts Chemical class 0.000 claims abstract description 15
- 230000002093 peripheral effect Effects 0.000 claims abstract description 3
- 239000007788 liquid Substances 0.000 claims description 15
- 238000002347 injection Methods 0.000 claims description 5
- 239000007924 injection Substances 0.000 claims description 5
- 239000004576 sand Substances 0.000 claims description 5
- 239000010438 granite Substances 0.000 claims description 4
- 239000013529 heat transfer fluid Substances 0.000 claims description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 3
- -1 basalt Substances 0.000 claims description 2
- 239000011435 rock Substances 0.000 claims description 2
- 238000005338 heat storage Methods 0.000 description 9
- 239000000463 material Substances 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- 239000004568 cement Substances 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000010248 power generation Methods 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 238000012216 screening Methods 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 230000008646 thermal stress Effects 0.000 description 2
- 239000002918 waste heat Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000001066 destructive effect Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000002386 leaching Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D20/00—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/14—Thermal energy storage
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Other Air-Conditioning Systems (AREA)
Abstract
The present invention relates to a kind of dipping sandstone heat-storing method and its devices, the heat-storing method is filled with sandstone in the closed container heat reservoir for being built-in with pipe-support type heat exchanger tube, filling heat-conductive oil or fused salt, make sandstone and pipe-support type heat exchanger tube be immersed in conduction oil or fused salt in gap between sandstone.There are one the closed containers for carrying insulating layer for the heat-storing device tool, equipped with pipe-support type heat exchanger and filled with sandstone in closed container, steeping medium is injected in gap between sandstone, there are one nitrogen cylinders in closed container peripheral hardware, and the outlet of nitrogen cylinder is passed through through nitrogen tube in closed container.The present invention can be made the heat transfer property of thermal storage device significantly improve, be reduced the power of the density of heat transfer pipe distribution and delivery pump in thermal storage device using dipping aggregate structure.Designing scheme of the present invention is reasonable, application easy to implement, and heat accumulation project cost can be greatly lowered in the case where meeting heat accumulation demand.
Description
Technical field
The content of present invention belongs to heat-storage technology field, is related to a kind of dipping sandstone heat-storing method and its device.
Background technology
It is always the pursuit of relevant technical worker as heat accumulating using sandstone cheap and easy to get in heat-storage technology field
Target.But traditional using sandstone as heat accumulation material of main part, cement gelling material is integrated sandstone, heat transfer medium pipeline curing
Concrete heat accumulation equipment and heat-storing method, which exist, to be had the disadvantage that：(1), the concrete of cement cementitious formation for a long time 400 DEG C with
It is easily dehydrated at a high temperature of upper, is allowed to concrete structure and generates destructive structure variation and the pipeline disengaging of metal material,
So that air can enter gap, the heat transfer property for being allowed to concrete is greatly lowered；(2) and the pipeline of metal material be glued to-
The rigid heat storage structure risen can also make metal since the difference of the coefficient of expansion generates thermal stress in the environment of long-term hot and cold alternation
The pipeline and concrete of material are detached from, and destroy overall structure, make the reduction of conventional concrete heat accumulation equipment working life.
Invention content
Existing using sandstone as heat accumulation material of main part, the cement cementitious sand-stone concrete heat accumulation it is an object of the invention to overcome
The above problem existing for technology provides a kind of dipping sandstone heat-storing method and its device.The solution of the present invention is reasonable, easy to implement
Using heat accumulation project cost can be greatly lowered in the case where meeting heat accumulation demand.
The technical solution used for realization more than goal of the invention is as described below.
A kind of dipping sandstone heat-storing method, it is characterized in that in the closed container heat accumulation system for being built-in with pipe-support type heat exchanger tube
Filled with sandstone in system, filling heat-conductive oil or fused salt in the gap between sandstone impregnate sandstone and pipe-support type heat exchanger tube
In conduction oil or fused salt.
Dipping sandstone heat-storing method of the present invention is divided into medium temperature heat accumulation and high-temperature heat-storage.Medium temperature heat accumulation steeping medium and biography
Thermal medium is conduction oil, can disclosure satisfy that general industry field, waste heat recovery, the sun used in less than 400 DEG C of heat accumulation requirement
The heat utilization of energy medium temperature, trough-electricity heat accumulation etc. heat accumulation.High-temperature heat-storage steeping medium and heat transfer medium are fused salt, are suitable for
500 DEG C or more of heat accumulation requirement, can meet the requirement that thermal power generation can especially meet solar energy thermal-power-generating high-temperature heat-storage.
The further technical solution of the method for the invention also resides in：The sandstone is to use granularity as 10mm~45mm
Rubble and medium-fine sand.
The further technical solution of the method for the invention also resides in：The sandstone is larger and than hot for screening density
It can preferable diabase, basalt, granite or cobble.
The dipping sandstone heat-storing device tool of the method for the present invention is used to implement there are one the closed container for carrying insulating layer, close
The lower part and top for closing container one side wall end are respectively equipped with liquid back pipe and outlet tube, and row is equipped in the lower part of closed container opposite side
Pipe is let out, equipped with pipe-support type heat exchanger and filled with sandstone in closed container, the pipe-support type heat exchanger is followed by multi-layer multi-row
Ring heat transfer fluid medium pipeline forms, and the both ends of pipe-support type heat exchanger communicate respectively with liquid back pipe and outlet tube, between sandstone
Steeping medium is injected in gap, liquid injection pipe is equipped on closed container top, there are one nitrogen cylinder, nitrogen cylinders in closed container peripheral hardware
Through nitrogen tube, portion is passed through in closed container from container for outlet.
In above-mentioned dipping sandstone heat-storing device, the sandstone is that the rubble for using granularity as 10mm~45mm is thin in
Sand.
In above-mentioned dipping sandstone heat-storing device, the sandstone is that screening density is larger green with the brightness of specific heat better performances
Rock, basalt, granite or cobble.
In above-mentioned dipping sandstone heat-storing device, the steeping medium is conduction oil or fused salt.
In above-mentioned dipping sandstone heat-storing device, the steeping medium is conduction oil or the heat conduction that graphite powder is mixed in it
Oil.
In above-mentioned dipping sandstone heat-storing device, fin structure can be used in heat transfer fluid medium pipeline, and spacing of fin is with 50mm
It is advisable, to enhance heat transfer property.
Compared with prior art, the good effect that has of the present invention is：
First, the present invention can be made the heat transfer property of thermal storage device significantly improve, be reduced in thermal storage device using dipping aggregate structure
The density of heat transfer pipe distribution and the power of delivery pump；
2nd, the present invention is immersed in as heat accumulating in steeping medium with sandstone material, and heat transfer pipe can be free in sandstone
It is flexible to reduce thermal stress, have and utilize the service life for extending equipment；
3rd, making of the invention is simple in structure, heat accumulating is cheap and easy to get, low cost, and application easy to implement can meet storage
Heat accumulation engineering cost is greatly lowered in the case of heat demand.
Description of the drawings
Fig. 1 is the structure diagram of a specific embodiment of the invention.
Each number designation title is respectively in figure：1- liquid back pipes, 2- closed containers, 3- outlet tubes, 4- nitrogen cylinders,
5- nitrogen tubes, 6- liquid level gauges, 7- sandstones, 8- pipe-support type heat exchangers, 9- steeping mediums, 10- liquid injection pipes, 11- heat preservations
Layer, 12- excretory ducts.
Specific embodiment
It is of the present invention dipping sandstone heat-storing method be：Pipe support is housed in the closed container of closed container heat reservoir
Formula heat exchanger, and fill sandstone, is then injected into steeping medium, and steeping medium liquid level is made to be higher by sandstone and is filled in subtle between sandstone
Gap, improve sandstone thermal storage performance, can thus reduce the density that fluid line is distributed in thermal storage device, reduce pipeline resistance
Power reduces circulating pump aerodynamic power, the cost of heat accumulation engineering is made to lower.During dipping sandstone heat-storing method of the present invention is divided into
Warm heat accumulation and high-temperature heat-storage.Medium temperature heat accumulation steeping medium and heat transfer medium are conduction oil, can be wanted used in less than 400 DEG C of heat accumulation
It asks, disclosure satisfy that general industry field, waste heat recovery, the heat utilization of solar energy medium temperature, trough-electricity heat accumulation etc. heat accumulation.High temperature stores up
Hot submersion medium and heat transfer medium are fused salt, and suitable for 500 DEG C or more of heat accumulation requirement, can meet thermal power generation can especially expire
The requirement of sufficient solar energy thermal-power-generating high-temperature heat-storage.
The structure of dipping sandstone heat-storing device of the present invention is as shown in Figure 1.It has sets the close of insulating layer 11 there are one wall
Container 2 and a nitrogen cylinder (or small-sized nitrogen charger) 4 being built in outside closed container 2 are closed, under 2 one side wall end of closed container
Portion and top are respectively equipped with liquid back pipe 1 and outlet tube 3, are equipped in the lower part of 2 opposite side of closed container and are used for discharging rotten leaching
The excretory duct 12 of stain liquid is equipped with liquid injection pipe 10 and liquid level gauge 6 on the top of closed container 2.It is equipped in closed container 2 by multilayer
The pipe-support type heat exchanger 8 of multiple rows of circulating heat transfer fluid media (medium) pipeline composition, pipe material can be steel, aluminium.Closed
It is also filled with, by the rubble that granularity is 10mm~45mm and the sandstone 7 that medium-fine sand is formed, noting in the gap between sandstone in container 2
Enter the heat accumulation steeping medium 9 being made of conduction oil or fused salt, sandstone 7 and the pipeline of pipe-support type heat exchanger 8 is made to be immersed in conduction oil
Or in fused salt.In specific implementation, medium temperature heat accumulation steeping medium and heat transfer medium are conduction oil, can be used in less than 400 DEG C of storage
Heat request can separately mix the excellent graphite powder of heat transfer property, to improve the heat transfer property of heat accumulating in conduction oil；High temperature
Heat accumulation steeping medium and heat transfer medium are fused salt, suitable for 500 DEG C or more of heat accumulation requirement.Medium temperature heat accumulation steeping medium and biography
Thermal medium is conduction oil, it is necessary to using nitrogen safeguard measure, prevent conduction oil oxidation deterioration and charing rotten；Nitrogen cylinder 4 is logical
The top that nitrogen tube 5 is crossed with closed container 2 connects.It is injected after fused salt is heats liquefied from liquid injection pipe 10, using corrosion resistant stainless
Steel conduit, corresponding heat accumulation ontology material are also corrosion-resistant stainless steel.
Dipping sandstone heat-storing device of the present invention is if using fused salt not need to nitrogen then for the device of steeping medium
Protection, can not set nitrogen cylinder and nitrogen tube.
Dipping sandstone heat-storing method and its device of the present invention, can be fabricated to heat storage units module, according to heat accumulation
Demand forms the big system of heat accumulation.
Claims (8)
1. a kind of dipping sandstone heat-storing method, it is characterised in that：In the closed container heat accumulation for being built-in with pipe-support type heat exchanger tube
Filled with sandstone in system, filling heat-conductive oil or fused salt in the gap between sandstone soak sandstone and pipe-support type heat exchanger tube
Stain is in conduction oil or fused salt.
2. dipping sandstone heat-storing method according to claim 1, it is characterised in that：The sandstone be use granularity for
The rubble and medium-fine sand of 10mm~45mm.
3. dipping sandstone heat-storing method according to claim 1 or 2, it is characterised in that：The sandstone is diabase, profound
Wu Yan, granite or cobble.
4. a kind of dipping sandstone heat-storing device, it is characterised in that：Have there are one the closed container (2) for carrying insulating layer (11),
The lower part and top at closed container (2) one side wall end are respectively equipped with liquid back pipe (1) and outlet tube (3), another in closed container (2)
The lower part of side is equipped with excretory duct (12), described equipped with pipe-support type heat exchanger (8) and filled with sandstone (7) in closed container (2)
Pipe-support type heat exchanger (8) be made of multi-layer multi-row circulating heat transfer fluid media (medium) pipeline, the both ends of pipe-support type heat exchanger (8) difference
It is communicated with liquid back pipe (1) and outlet tube (3), steeping medium (9) is injected in the gap between sandstone, on closed container (2) top
Equipped with liquid injection pipe (12), in closed container (2) peripheral hardware there are one nitrogen cylinder (4), the outlet of nitrogen cylinder (4) leads to through nitrogen tube (5)
Enter in closed container (2).
5. dipping sandstone heat-storing device according to claim 4, it is characterised in that：The sandstone (7) is using granularity
Rubble and medium-fine sand for 10mm~45mm.
6. dipping sandstone heat-storing device according to claim 4 or 5, it is characterised in that：The sandstone (7) is green for brightness
Rock, basalt, granite or cobble.
7. dipping sandstone heat-storing device according to claim 4, it is characterised in that：The steeping medium (9) is heat conduction
Oil or fused salt.
8. the dipping sandstone heat-storing device according to claim 4 or 7, it is characterised in that：The steeping medium (9) is leads
Deep fat or the conduction oil that graphite powder is mixed in it.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711339276.2A CN108151566A (en) | 2017-12-14 | 2017-12-14 | Impregnate sandstone heat-storing method and its device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711339276.2A CN108151566A (en) | 2017-12-14 | 2017-12-14 | Impregnate sandstone heat-storing method and its device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108151566A true CN108151566A (en) | 2018-06-12 |
Family
ID=62466820
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711339276.2A Pending CN108151566A (en) | 2017-12-14 | 2017-12-14 | Impregnate sandstone heat-storing method and its device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108151566A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108871029A (en) * | 2018-07-19 | 2018-11-23 | 西安中原机械有限公司 | Heat transfer medium overcurrent sandstone heat-storing method and its device |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09195219A (en) * | 1996-01-22 | 1997-07-29 | Motohiro Sasaki | Road surface heating device for thawing snow |
| CN202013127U (en) * | 2011-04-02 | 2011-10-19 | 刘阳 | Solid heat accumulation structure |
| DE102012007432A1 (en) * | 2012-04-13 | 2013-10-17 | Heinz Barth | Apparatus for storing thermal energy, and particularly electrical energy, has energy storage element formed as hybrid energy storage element, which comprises substantially homogeneous mixture for energy storage and recovery of energy |
| WO2017013152A1 (en) * | 2015-07-22 | 2017-01-26 | Eth Zurich | System and method for storing and releasing heat |
| CN107062639A (en) * | 2017-01-04 | 2017-08-18 | 北京中热能源科技有限公司 | A kind of solar heat collection, energy storage device |
| CN107218832A (en) * | 2017-07-18 | 2017-09-29 | 刘绍允 | There are the sandstone heat-storing method and its device on carbon heat conduction top layer |
| CN207936817U (en) * | 2017-12-14 | 2018-10-02 | 西安中原机械有限公司 | Impregnate sandstone heat-storing device |
-
2017
- 2017-12-14 CN CN201711339276.2A patent/CN108151566A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09195219A (en) * | 1996-01-22 | 1997-07-29 | Motohiro Sasaki | Road surface heating device for thawing snow |
| CN202013127U (en) * | 2011-04-02 | 2011-10-19 | 刘阳 | Solid heat accumulation structure |
| DE102012007432A1 (en) * | 2012-04-13 | 2013-10-17 | Heinz Barth | Apparatus for storing thermal energy, and particularly electrical energy, has energy storage element formed as hybrid energy storage element, which comprises substantially homogeneous mixture for energy storage and recovery of energy |
| WO2017013152A1 (en) * | 2015-07-22 | 2017-01-26 | Eth Zurich | System and method for storing and releasing heat |
| CN107062639A (en) * | 2017-01-04 | 2017-08-18 | 北京中热能源科技有限公司 | A kind of solar heat collection, energy storage device |
| CN107218832A (en) * | 2017-07-18 | 2017-09-29 | 刘绍允 | There are the sandstone heat-storing method and its device on carbon heat conduction top layer |
| CN207936817U (en) * | 2017-12-14 | 2018-10-02 | 西安中原机械有限公司 | Impregnate sandstone heat-storing device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108871029A (en) * | 2018-07-19 | 2018-11-23 | 西安中原机械有限公司 | Heat transfer medium overcurrent sandstone heat-storing method and its device |
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| PB01 | Publication | ||
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| CB02 | Change of applicant information |
Address after: 710000 Caotang Industrial Park, Fuyi District, Xi'an City, Shaanxi Province Applicant after: XI'AN ZHONG YUAN MECHANICAL Co.,Ltd. Address before: 710311 Industrial Zone, thatched Town, Huyi Town, Xi'an, Shaanxi Applicant before: XI'AN ZHONG YUAN MECHANICAL Co.,Ltd. |